Power for window-operators



UNITED STATES PATENT OFFICE.

POWER FOR WINDOW-OPERATORS.

T 0 all-207mm it may concern.

Be it. known that I, JOHN J. PARKER,,a citizen of the United States, andresidentof Bridgeport, in the county of Fairfield and State ofConnecticut, have invented certain new and useful Improvements in. Powerfor for Window-Operators, of which the following is a specification. V

My invention relates to improvements 1n power devices for window sashoperators such as are employed for operating a series of pivotally hungor hinged sash as commonly used in foundries, factories and the like.

The invention is particularl designed for what is commonly known asouble or twoway sash operators, including two connecting arms and a pairof slidable rods to which the arms are attached, said rods being adaptedfor longitudinal movement in either direction but at all times inopposite directions one tothe other.

The purpose of the invention is to simplify and improve upon theconstruction of power devices of the above class and particularly toprovide a novel and inclosed form of construction to which'the'saidparallel longitudinal operating rods may be directly connected, andfurther to include a single shaft and wheel for operating the slidablerods simultaneously in opposite directions.

The power is further designed for close attachment to the part of thewindow casing or other support at any point along the line of sash to beoperated and'likewise nearby and in alinement with the operating rodswhether the same be near the floor 0r elevated therefrom, and to includemeans connected with the driving elements of the power whereby the samemay be manuallyv operated by a suspended chain from the floor beneath,or like positions, or operated by a motor or other driving means.

With these and other objects in view the invention resides and consistsin the construction and novel combination and arrangement of partshereinafter more fully described, illustrated in the accompanyingdrawings, and pointed out in the claim hereto appended, it beingunderstood that various changes in the form, proportion, size and minordetails of construction within the scope of the claim'mayfbe resorted towithout departure from the spirit or sacrificing any of the advantagesof the invention;

Similar characters of reference denote like Specification of LettersPatent.

Patented Nov. 1, 1921.

Application filed December 8, 1920. fierial No. 429,155.

or corresponding parts throughout the several figures of theaccompanying drawings forming a part of this specification, and uponwhich, 7

Figure 1 shows a sectional plan view of a series of windows providedwith double sash operators and my improved form of power for operatingthe same.

*ig. 2 is an enlarged sectional elevation of the power shown in Fig. 1taken on line Fig,-3, and

ig. 3 is a vertical section of the same taken on line 33 of Fig. 2.

In Fig. 1 I have shown a commercial form of. double acting window sashoperator as employed for some classes of large windows and to which myimproved power device is shown connected. Referring in detail thereto, 5represents the window frame, 6 the sash pivotally hung in the windowframe, 7 represents brackets attached to the casings of the windowframe, for supporting the two longitudinally arranged slid-.

able rods 8 and 9 forming the operating members to which the series ofsash are con nected for operation. These slide rods are connected withthe power apparatus whereby the rods are simultaneously slid in opposltedirections to adjust the operators and window sash.

Each sash is provided with two arms 10 and 11, one of which is pivotallyconnected to one edge of the sash and the other to the opposite edge ofthe same sash. The outer end of the first, mentioned link 10 ispivotally connected at 12, to the upper slide rod 8 and the lower link11 is similarly connected to the lower slide rod 9. In practice theupper rod is moved longitudinally to the left while the lower rod issimilarly moved to the right, thus having opposite movements whichcauses the opposite ends of the arms together with the sash to whichthey are pivotally connected to swing out to open the window, whereasthe opposite sliding movements of the operating rods will obviouslyserve to close the sash.

The power is shown applied to the window mullion between two series ofwindows and to its opposite sides are the two slide rods employed foroperating the two sets of window sash operators.

. In Figs. 2 and 3 this same form of power is shown upon a larger scaleand as will be noted includes a housing 13 for support ing and inclosingthe principal operating shaft 20.

of the brackets are provided with screw holes for attachment to thewindow mullion in the manner indicated in Fig. 3. By reason of the slots18 provided in the arms 16 I am able to adjustably position mypower atany distance from the face of'the window casing to properly aline withthe position of the operatlng shafts to which the power is connected.

' I provide a bearing'in the back 19 of the housing to support one endof the operating shaft 20 and also provide a similar bearing 21 in thecentral portion ofthe closure plate 14: to support the other end portionof the Upon the housed portion of this shaft is secured a spiral gear 22and upon its outer end is mounted a sheath wheel 23, the said partsbeing secured in position by means of nuts 24 and 25. vided. to engagethe annular groove of the said wheel 23 from which it is suspended andwhereby itmay be operated by a per-' son standing on the floor.

Shafts 27 and 28 are alike in construction and each include a threadedportion 27 and 28 which are mounted to freely turn in the alinedbearings 29 provided for them'in the opposite sides of the housing. Ialso provide upon the threaded portion of each of these shafts justinside of the bearings 29 a thrust bearing 30 which, as will be noted,is particularly positioned between said bearings and the spiral gears 31and 32 contained within the housing and threadably mounted upon thethreaded portion of each of the said threaded shafts 27 and 28. Saidspiral ears 31 and 32 are positioned, one above the other, in mesh andin operative alinement with the above mentioned spiral gear 22 securedupon the operating shaft 20, ar-

ranged intermediate of the said shafts 27 A chain 26 is proand 28, so asto be operated thereby. The

tufiing of the operating shaft 20 therefore toether with its spiral gear22 will obviouslyiserve to rotatethe' upper gear 31 in one direction andthe lower shaft in the opposite direction,.thus-moving the upperoperating rod lower one to the right.

As before stated the operating rods 8 and 9 are preferably formed ofpipe which are slidably mounted in the several brackets? secured to thewindow casingorother support and are conveniently attached to theopposite ends of the shafts 27 and 28 and by simply being slid on theends'as Shown in Fig. 2 and secured by means'of the pins 33.

Having thus described my invention, what I claim and desire to secure byLetters Patent, is-" i V In combination with two-way window sashoperators, a power device comprising a housing and means for adjustablyattaching the same to a support, two longitudinally arranged threadedshafts journaled in the housing and adapted to move longitudinally andin opposite directions therein, a spiral gear mounted upon each of thesaid shafts and in threaded engagement therewith, an operating shaft'journaled in the housing at a right angle to the above mentionedthreaded shafts and intermediate thereof, a spiral gear mounted upon thesaid operating shaft and meshing with the two above mentioned spiralgears on the threaded shafts, an operating pulley mounted upon the outerend of the operating shaft, and means connected therewith for rotatingthe same together with its shaft, whereby the threaded shafts will becaused to move in opposite directions for the purpose described.

Signed at Bridgeport in the county of Fairfield and State of Connecticutthis 6th day of December, A. D. 1920.

, JOHN J. PArtKER. Witnesses:

C. M. NEWMAN,

LILLIAN M. ALLING.

to the left and the gear 32 and its

